AFOS product CLIIAD
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CDUS41 KLWX 090528
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
128 AM EDT WED AUG 09 2023

...................................

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 8 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         86   5:19 PM 101    2007  87     -1       94        
  MINIMUM         69   4:48 AM  49    1989  66      3       75        
  AVERAGE         78                        77      1       85     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.74 2005   0.12  -0.12      T       
  MONTH TO DATE    1.19                      0.96   0.23     0.78     
  SINCE JUN 1      8.58                      9.41  -0.83     8.76     
  SINCE JAN 1     18.56                     26.65  -8.09    25.98     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE JUN 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1      0.0                       0.0    0.0      0.0      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE JUN 1      5                        13     -8        0        
  SINCE JUL 1      0                         0      0        0        

 COOLING                                                              
  YESTERDAY       13                        12      1       20        
  MONTH TO DATE   87                        96     -9      133        
  SINCE JUN 1    742                       712     30      786        
  SINCE JAN 1    816                       818     -2      915        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (310)       
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (310)       
  AVERAGE WIND SPEED    10.8                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.5                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           1:00 AM                                      
 LOWEST     40           5:00 PM                                      
 AVERAGE    69                                                        

..........................................................


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   87        97      1980                      
                                             2001                     
 MINIMUM TEMPERATURE (F)   66        47      1989                      


SUNRISE AND SUNSET                                                    
AUGUST  9 2023........SUNRISE   6:18 AM EDT   SUNSET   8:12 PM EDT     
AUGUST 10 2023........SUNRISE   6:19 AM EDT   SUNSET   8:11 PM EDT     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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